Installation
General Installation Checks
The checklist below is a summary of the steps required to successfully in- stall a commercial unit. This checklist is intended to acquaint the installing personnel with what is required in the installation process. It does not re- place the detailed instructions called out in the applicable sections of this manual.
1Remove packaging and inspect the unit. Check the unit for shipping damage and material shortage; file a freight claim and notify appropri- ate sales representation.
Note: The 1/2 through 5 ton units have been tied to the skid by (2) shipping bolts. The removal of these bolts will require a 3/8" (9.7
mm)ratchet with a 1/2" (12.7 mm) socket.
The GEV 6 through 25 ton units have been anchored to the skid with (4) angle brackets. Remove these brackets before lifting unit into place.
The GEH 6 through 15 ton units are anchored to the cross brace of the skid with (4) wood screws. Re- move these screws prior to lifting the unit into place.
2Verify the correct model, options and voltage from the unit name- plate.
3Pull out all field attached parts (i.e. filter rack, duct collar, filter and mounting screws) from the unit packaging for field mounting.
4Verify the installation location of the unit will provide the required clearance for proper operation.
5Remove refrigeration access panel and inspect the unit. Be certain the refrigerant tubing has clearance from adjacent parts.
6Fabricate and install duct work.
7Install and connect a condensate drain line and trap to the drain
connection.
WARNING
Hazardous
Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to disconnect power before servicing could result in death or serious injury.
Main Electrical
8Verify the power supply complies with the unit nameplate specifica- tions.
9Inspect all control panel compo- nents; tighten any loose connec- tions.
10Connect properly sized and pro- tected power supply wiring to a
11Install proper grounding wires to an earth ground.
Note: All
Electric Heat Requirements
12Verify that the power supply com- plies with the electric heater specifications on the unit and heater nameplate.
13Inspect the heater junction box and control panel; tighten any loose connections.
14Check electric heat circuits for continuity.
Low Voltage Wiring (AC & DC) Requirements
15Install the zone thermostat, with or without switching subbase.
16Connect properly sized control wiring to the proper termination points between the zone thermo- stat and the unit control panel.
Filter Installation
17Each unit ships with 1" (25.4) or 2" (50.8 mm) filters. The quantity of filters is determined by unit size. The horizontal1/2 through 5 ton units requires a field installation of the 1"/2" filter rack. All sheet- metal bracket, filter and hardware are in a box located on the side of the unit within the unit packaging. All 1/2 through 25 ton verticals and 6 through 15 ton horizontal units ship with the filter rack and filters factory installed.
Note: Do not operate the unit without filters.
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